Validity and Reliability of a New Device to Measure Type of Actions in Indoor Sports.

The purpose of this study was to analyze the validity and the reliability of the intensity ranges, number of actions and changes of direction measured by a commercial inertial measurement unit. Eleven elite youth futsal players performed a circuit with different type of displacements as sprinting, running at low-medium intensity, standing up and changes of direction. Data recorded by the Overtraq system were compared with video-analyzer during the six trials of each player.

Is Marathon Training Harder than the Ironman Training? An ECO-method Comparison.

To compare the absolute and relative training load of the Marathon (42k) and the Ironman (IM) training in recreational trained athletes. Fifteen Marathoners and Fifteen Triathletes participated in the study. Their performance level was the same relative to the sex's absolute winner at the race.

Specific Intensity for Peaking: Is Race Pace the Best Option?

Background: The peaking period for endurance competition is characterized for a relative increase of the intensity of training, after a longer period of training relatively dominated by lower intensity and higher volume.

Objectives: The present study was designed to compare physiological and 10 km performance effects of high intensity training (HIT) versus race pace interval training (RP) during peaking for competition in well-trained runners.

Patients And Methods: 13 athletes took part in the study, they were divided into two groups: HIT and RP.

Training-intensity distribution during an ironman season: relationship with competition performance.

Purpose: To describe training loads during an Ironman training program based on intensity zones and observe Training-performance relationships.

Methods: Nine triathletes completed a program with the same periodization model aiming at participation in the same Ironman event. Before and during the study, subjects performed ramp-protocol tests, running, and cycling to determine aerobic (AeT) and anaerobic thresholds (AnT) through gas-exchange analysis.

Does polarized training improve performance in recreational runners?

Purpose: To quantify the impact of training-intensity distribution on 10K performance in recreational athletes.

Methods: 30 endurance runners were randomly assigned to a training program emphasizing low-intensity, sub-ventilatory-threshold (VT), polarized endurance-training distribution (PET) or a moderately high-intensity (between-thresholds) endurance-training program (BThET). Before the study, the subjects performed a maximal exercise test to determine VT and respiratory-compensation threshold (RCT), which allowed training to be controlled based on heart rate during each training session over the 10-wk intervention period.